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Through the looking glass: A cross-chiral reaction challenges our definition of life

Researchers demonstrate the first cross-chiral exponential amplification of an RNA enzyme, potentially leading to the development of cross-chiral therapeutics and biotechnologies. The discovery suggests that a bioengineer can create a new form of biochemical evolution by using both left- and right-handed molecules.

SourceSalk Institute·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateOct 22, 2024

Researchers at IOCB Prague develop a new method for enzymatic synthesis of potential RNA therapeutics

Researchers at IOCB Prague have developed a novel method for preparing ribonucleic acid (RNA) containing modified bases using engineered DNA polymerases. This opens the door to applications in chemical biology and therapeutic applications, including mRNA drugs.

New insights on the transcriptional regulation of seed germination

Researchers at CRAG have made groundbreaking discoveries on seed germination, identifying key regulatory features and non-coding RNAs that drive the process. The study reveals that transcription restarts much earlier than previously thought, opening up new avenues for investigation into the role of the non-coding genome.

SourceCenter for Research in Agricultural Genomics (CRAG)·JournalNature Communications·TypeData/statistical analysis·DateMar 20, 2024

Breakthrough in combating multiple myeloma: For the 1st time in the world researchers destroyed most cancer cells in the bone marrow using a targeted system containing RNA therapy

A breakthrough treatment targeting bone marrow cancer cells destroyed 90% of multiple myeloma cells in laboratory tests and 60% in human tissue samples. Researchers developed lipid-based nanoparticles containing RNA molecules that silence the CKAP5 gene, inhibiting cancer cell division.

SourceTel-Aviv University·JournalAdvanced Science·TypeRandomized controlled/clinical trial·DateJul 27, 2023

James Chappell wins NSF CAREER Award

James Chappell, a Rice University bioscientist, has won a National Science Foundation CAREER Award to create RNA programming methods for microbial communities in natural habitats. His research aims to improve human health and the environment by genetically manipulating microbial communities.

Scientists with the help of computer modeling discover a substance that blocks coronavirus

Researchers at South Ural State University used computer modeling to identify a substance that can block the spread of coronavirus. The study found that ligands must match RNA polymerase as closely as possible to be effective, and scientists have developed an equation to test other ligands' effectiveness on receptors.

SourceSouth Ural State University·JournalMolecules·TypeComputational simulation/modeling·DateAug 16, 2021

Prebiotic RNA synthesis

A team of scientists discovered ribozymes that utilize the prebiotically plausible 2-aminoimidazole group to catalyze RNA synthesis. This finding implies a complex interplay between nonenzymatic and enzymatic RNA synthesis during Earth's origin, challenging existing theories.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateMar 2, 2020

Life's Frankenstein beginnings

A new study proposes that the first building blocks of life on Earth were not uniform but rather patchwork molecules containing bits of RNA and DNA. The 'RNA World' hypothesis has been revised to suggest a Frankenstein-like beginning, with RNA emerging from a mixture of nucleotides.

SourceHarvard University·JournalJournal of the American Chemical Society·DateJan 22, 2020

HKUST scientists discover how RNA PoII maintains accurate transcription with super computer

A research team led by Prof. HUANG Xuhui discovered the mechanism of RNA polymerase II correcting errors in RNA synthesis, which relies on the RNA itself rather than amino acid residues. This finding offers insights into how transcription may go wrong in ageing and diseased cells, potentially leading to various human diseases.

Synthetic molecule invades double-stranded DNA

Researchers at Carnegie Mellon University developed a synthetic molecule that can recognize and bind to double-stranded DNA or RNA under normal physiological conditions. The Janus gamma PNAs have an extraordinarily high binding energy and can be designed to target genomic DNA for gene editing and transcriptional regulation.

SourceCarnegie Mellon University·JournalCommunications Chemistry·DateNov 12, 2018

RNA microchips

Researchers at the University of Vienna and McGill University have created a new approach to synthesizing RNA, making it up to a million times more efficient than previous methods. The breakthrough uses photolithographic fabrication technology and a new protecting group to produce RNA chips with high yields.

SourceUniversity of Vienna·JournalAngewandte Chemie International Edition·DateNov 6, 2018

Gene regulation: Shaping up to make the cut

Researchers have discovered that distinct conformations of a protein essential for spliceosome assembly on mRNA precursors significantly influence splicing efficiency. The findings suggest that different structural configurations adopted by the large subunit of U2AF regulate splicing operations, affecting protein synthesis rates and fi...

SourceLudwig-Maximilians-Universität München·JournalProceedings of the National Academy of Sciences·DateNov 3, 2016

Watching RNA fold

Researchers at Northwestern University have developed a technology platform that provides high-resolution representation of RNA folding during synthesis. This breakthrough allows for the study of RNA folding in unprecedented detail, potentially leading to discoveries in basic biology, gene expression, and disease.

SourceNorthwestern University·JournalNature Structural & Molecular Biology·DateOct 31, 2016

Scientists take big step toward recreating primordial 'RNA world' of 4 billion years ago

Researchers at TSRI successfully created a ribozyme capable of synthesizing complex RNA molecules with mixed sequences, showing promise for replicating the ancient RNA world. The new ribozyme can perform both RNA synthesis and replication, a crucial step towards creating a self-sustaining RNA-based life form.

SourceScripps Research Institute·JournalProceedings of the National Academy of Sciences·DateAug 15, 2016

Evolution: Building blocks of life

Researchers at Ludwig-Maximilians-Universität München have identified a plausible reaction mechanism for the production of key components of RNA under conditions similar to those on the young Earth. The discovery validates a pathway that could explain how chemical evolution proceeded before the formation of the first cells.

Blood product sterilization taken too far?

International study reveals blood product sterilization processes can prevent platelets from carrying out their functions correctly, potentially leading to hemorrhages. The processes alter the genetic material of pathogen-reducing treatments, depleting platelets of RNA and impairing their ability to synthesize essential proteins.

SourceUniversité Laval·JournalPlatelets·DateJun 12, 2014

Virus rounds up enzymes, disarms plant

Researchers discovered how a plant-virus protein suppresses a key plant defense mechanism that remembers viral genetic information. The enzyme cluster formation caused by TGBp1 disrupts the recording of viral genetic information, reducing plant resistance to infection.

SourceUniversity of Tokyo·JournalThe Plant Cell·DateMay 30, 2014

Biological circuits for synthetic biology

Researchers aim to create biological circuits using RNA molecules for the engineering of programmable genetic networks. They have successfully eliminated protein requirements and developed a system that can sense RNA input and synthesize output signals, performing logic operations and regulating multiple genes. This breakthrough has si...

SourceDOE/Lawrence Berkeley National Laboratory·JournalProceedings of the National Academy of Sciences·DateMay 26, 2011